US20170221468A1 - Systems and methods for constructing noise reducing surfaces - Google Patents
Systems and methods for constructing noise reducing surfaces Download PDFInfo
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- US20170221468A1 US20170221468A1 US15/422,308 US201715422308A US2017221468A1 US 20170221468 A1 US20170221468 A1 US 20170221468A1 US 201715422308 A US201715422308 A US 201715422308A US 2017221468 A1 US2017221468 A1 US 2017221468A1
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- acoustic medium
- acoustic
- construction material
- sound absorption
- absorption structure
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Definitions
- the present disclosure is directed to systems and methods for constructing structures and/or surfaces for absorbing sound energy. More particularly, this disclosure relates to systems and methods for providing sound dampening wherein a sound absorption system is integrally formed with a structural surface.
- FIG. 1 is a cross-sectional view of a multi-layered sound absorption structure, according to an embodiment of the disclosure
- FIG. 2 is a cross-sectional view of another embodiment of a multi-layered sound absorption structure
- FIG. 3 is a perspective view of a junction of two acoustic panels of the acoustic medium, according to an embodiment of the disclosure
- FIG. 4A is a top view of a form material, according to an embodiment of the disclosure.
- FIG. 4B is a top view of a form material and an array of acoustic media, according to an embodiment of the disclosure
- FIG. 4C is a top view of a multi-layered sound absorption structure, according to an embodiment of the disclosure.
- FIG. 5 is a flowchart of a method for constructing a multi-layered sound absorption structure, according to an embodiment of the disclosure.
- FIG. 6 is another embodiment of a method for constructing a multi-layered sound absorption structure.
- the present disclosure relates to systems and methods for installing sound absorption systems that are integrally formed with structural elements of the building. This may reduce installation costs, provide uniformity of sound dampening, and/or streamline the scheduling of a construction project.
- the systems and methods generally relate to installing an acoustic medium during a construction process comprising pouring a construction material (e.g., a curing construction material or uncured construction material) such as concrete, cement (e.g., gypsum cement) or another cementitious material, a composite material, or a plaster onto an acoustic medium; wherein a portion of the construction material migrates into a region of the acoustic medium, and curing the construction material such that the acoustic medium is integrally bonded to the construction material.
- a construction material e.g., a curing construction material or uncured construction material
- cement e.g., gypsum cement
- the systems and methods may be used in the construction of various components of a building such as ceilings, floors, walls, and elevator shafts. And in particular embodiments, the systems and methods may be used for surfaces that are a ceiling for one story (e.g., a first story) and a floor for another story (e.g., a second story) of a multi-story building. In yet further embodiments, the systems and methods may also be used in post tension slab construction.
- top “bottom,” “over,” “under,” and the like in the description and in the claims, if any, are used for descriptive purposes and not necessarily for describing permanent relative positions. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in other orientations than those illustrated or otherwise described herein.
- Objects described herein as being “adjacent” to each other may be in physical contact with each other, in close proximity to each other, or in the same general region or area as each other, as appropriate for the context in which the phrase is used.
- Coupled to is broad enough to refer to any suitable coupling or other form of interaction between two or more entities, including mechanical, fluid and thermal interaction. Two components may be coupled to each other even though they are not in direct contact with each other.
- attached to refers to interaction between two or more entities which are in direct contact with each other and/or are separated from each other only by a fastener of any suitable variety (e.g., an adhesive).
- FIG. 1 illustrates a cross-sectional view of a multi-layered structure 100 according to an embodiment of the present disclosure.
- the multi-layered structure 100 can also be referred to as a multi-layered sound absorption structure, or a sound absorption system, etc.
- the multi-layered structure 100 comprises an acoustic medium 120 and a construction material 140 .
- the multi-layered structure 100 also comprises a form material 110 , although in some instances the form material 110 can be removed after manufacturing, as further detailed below.
- the form material 110 can include various types of materials.
- the form material 110 comprises one or more of wood, metal, plastic, fiberglass, and resin.
- the form material 110 is used to at least temporarily hold or otherwise retain the acoustic medium 120 and the construction material 140 , such as when the construction material 140 cures and/or otherwise hardens or solidifies (such as from a fluid state to a solid state).
- the form material 110 may also be coupled to an additional support structure to further support a weight of the multi-layered structure 100 .
- the form material 110 may be removed after the construction material 140 has cured.
- a form material 110 is not used, and the construction material 140 is poured or otherwise disposed on the acoustic medium 120 without the need of a form material 110 .
- a form material 110 is disposed adjacent to one or more of the bottom surface and side surfaces (or perimeter) of the acoustic medium 120 .
- the acoustic medium 120 may comprise various types of sound dampening material.
- the acoustic medium 120 comprises a fibrous sound dampening material such as polyester and/or fiberglass.
- the acoustic medium 120 may also be porous, such that it may absorb (or at least partially absorb) a liquid or fluid material such as a liquid or fluid construction material 140 .
- the acoustic medium 120 may also be permeable, or semipermeable.
- the acoustic medium 120 is also substantially water or moisture-resistant.
- the acoustic medium 120 may comprise a nonwoven fabric.
- the acoustic medium 120 may comprise a spunbonded olefin or polyester.
- Certain nonwoven acoustic mediums 120 may permit water vapor to pass through, such as during a curing phase of the construction material 140 , while limiting the flow of fluid or liquid construction material 140 to one or more regions of the acoustic medium 120 .
- nonwoven acoustic mediums 120 may facilitate bonding to the construction material 140 , as further detailed below.
- the acoustic medium 120 may also comprise a treated acoustic media or material.
- the acoustic medium 120 can comprise acoustic material of which at least a portion is melted using one or more of heat, acid, or other chemical compounds.
- the acoustic medium 120 may be at least partially melted using heat from one or more of a flame, a hot iron, and exposure to heated gases.
- the acoustic medium 120 can comprise one or more of a high melt and a low melt acoustic material.
- High melt acoustic materials can refer to materials having a melting point above about 450° F.
- Low melt acoustic materials can refer to materials having a melting point above about 320° F.
- the acoustic medium 120 may comprise between about 50% and 95%, or between about 70% and 90% by weight of a high melt material; and between about 5% and 50%, or between about 10% and 30% by weight of a low melt material.
- At least a region of the acoustic medium 120 can be coupled (e.g., integrally coupled) to the construction material 140 .
- a fluid and/or uncured construction material 140 can be poured, dispensed, and/or otherwise disposed onto a surface of the acoustic medium 120 .
- At least a portion of the fluid or uncured construction material 140 can then migrate and/or flow through the surface and into a region of the acoustic medium 120 before curing or otherwise solidifying.
- the fluid and/or uncured construction material 140 flows into voids (or the porous network) between individual fibers (or clusters of fibers) of the acoustic medium 120 . In some instances, this flow of construction material 140 into the region of the acoustic medium 120 can be described as interdigitation.
- the construction material 140 can flow into the acoustic medium 120 to varying depths.
- the construction material 140 flows or migrates into the acoustic medium 120 to a depth or distance of between about 1/32 and about 1 ⁇ 8, or between about 1/24 and about 1/12 inches.
- the construction material 140 cures and/or otherwise hardens or solidifies
- the construction material 140 dispersed throughout a region of the acoustic medium 120 can cure around the fibers (or clusters of fibers) of the acoustic medium 120 thereby binding or coupling the construction material 140 to the acoustic medium 120 .
- the acoustic medium 120 can be described as being integrally bound or coupled to the construction material 140 .
- At least a portion of the fibers of the acoustic medium 120 can also be described as being disposed within a portion of the construction material 140 .
- the integral coupling can create a bond between the acoustic medium 120 and the construction material 140 that does not require an additional mechanical coupling device.
- a mechanical coupling device may be added after the curing process to reinforce the integral coupling of the construction material 140 and the acoustic medium 120 .
- At least one surface of the acoustic medium 120 may be integrally coupled to the construction material 140 .
- the acoustic medium 120 is a rectangular prism-shaped panel
- a surface of the acoustic medium 120 that is opposite the form material 110 may be coupled to the construction material 140 .
- one or more of side surfaces of the acoustic medium 120 may also be coupled to the construction material 140 .
- the one or more surfaces may also comprise a barrier material to prevent excessive absorption of the construction material 140 by the acoustic medium 120 , as further detailed below.
- At least a portion of one or more surfaces of the acoustic medium 120 is not in direct contact with the curing construction material 140 . This may facilitate a direct interface of the one or more surfaces of the acoustic medium 120 to the form material 110 , such that when the form material 110 is removed at least a portion of one surface of the acoustic medium 120 is exposed.
- the acoustic medium 120 may comprise acoustic panels that may be any size including, but not limited to, about two feet by two feet, two feet by four feet, four feet by four feet, four feet by six feet, six feet by six feet, four feet by eight feet, or four feet by 10 feet.
- the acoustic medium 120 or panel may also be any thickness including, but not limited to, about half of an inch, about one to two inches, about two to four inches, or about four to six inches.
- the acoustic medium 120 may also comprise material at various densities.
- the acoustic medium 120 may comprise a plurality of regions of material having distinct densities. The plurality of regions of material having distinct densities may have different sound absorption capabilities and may target various frequency ranges of sounds.
- the acoustic medium 120 may comprise acoustic material of one or more of the following ranges of density: two to three pounds per cubic foot, two to four pounds per cubic foot, four to six pounds per cubic foot, six to eight pounds per cubic foot, and eight to 15 pounds per cubic foot.
- the acoustic medium 120 may comprise two or more regions of discrete densities. In some of these embodiments, a region having a higher density is at least partially disposed adjacent the form material 110 . In other embodiments, a region having a higher density is at least partially disposed adjacent the construction material 140 .
- the acoustic medium 120 comprises at least three regions of discrete densities. In some of these embodiments, a region having a lowest density is at least partially disposed between the two remaining regions. For example, in some of these embodiments, a region having the highest density is disposed adjacent the form material 110 and a region having the next highest density is disposed adjacent the construction material 140 . In other similar embodiments, a region having the highest density is disposed adjacent the construction material 140 and the region having the next highest density is disposed adjacent the form material 110 .
- the acoustic medium 120 may reduce acoustic energy by at least 20%, at least 30%, at least 40%, at least 50%, at least 75%, or at least 90%. In other embodiments, the acoustic medium 120 may reduce acoustic energy in an amount ranging from 50% to 90%.
- the standard for measuring such a reduction of acoustic energy may be a Noise Reduction Coefficient (NRC) as tested under ASTM C423.
- NRC Noise Reduction Coefficient
- FIG. 2 depicts a multi-layer structure 200 according to another embodiment of the present disclosure.
- the acoustic medium 220 can include a barrier 230 , or a separate barrier layer 230 can be disposed between the acoustic medium 220 and the construction material 240 .
- the barrier 230 can aid in limiting and/or minimizing the amount of construction material 240 that flows, migrates, or saturates the acoustic medium 220 .
- the barrier 230 may, in some instances, comprise a portion of the acoustic medium 220 (such as a treated portion of the acoustic medium 220 ).
- an acoustic material may comprise the form material 210 and the acoustic medium 220 .
- the barrier 230 may be formed by treating a portion of the acoustic medium 220 .
- treating a portion of the acoustic medium 220 may comprise heating a portion of the acoustic medium 220 , or coating a portion of the acoustic medium 220 with one or more of a moisture-resistant material and a moisture-proof material to thereby form a barrier layer 230 .
- Coating a portion of the acoustic medium 220 may also comprise applying a thin layer of moisture-resistant material such that at least some fibers of the acoustic medium 220 penetrate the moisture-resistant material and are exposed to the construction material 240 .
- the barrier 230 may also be formed of a semi-permeable, moisture-resistant material such that a portion of the acoustic medium 220 may absorb a portion of the construction material 240 that flows through the barrier 230 . Partial absorption may facilitate coupling of the acoustic medium 220 to the curing construction material 240 .
- the barrier 230 may comprise fibrous material that absorbs a portion of the construction material 240 to couple the barrier 230 to the construction material 240 during a curing process while limiting contact between the acoustic medium 220 and the construction material 240 .
- the barrier 230 is coupled to the acoustic medium 220 during a manufacturing process of the acoustic medium 220 .
- the barrier 230 may be coupled to the acoustic medium 220 after a manufacturing process of the acoustic medium 220 . In some such embodiments, the barrier 230 may be coupled to the acoustic medium 220 using a bonding method comprising one or more of heat and pressure. In other embodiments, the barrier 230 may be coupled to the acoustic medium 220 using adhesive material.
- FIG. 3 is a perspective view of two panels of the acoustic medium 320 being coupled together using an overlay material 350 .
- the overlay material 350 may be coupled or attached to a surface 322 of each of the two panels of the acoustic medium 320 (or a surface of the barrier if a barrier layer is used).
- the overlay material 350 can cover the joint (or gap) between the two panels, forming a barrier over the joint.
- the overlay material 350 can restrict or prevent the construction material from flowing through (e.g., completely through) the joint area (or gap) between the panels.
- the overlay material 350 can prevent the construction material from flowing from one side (e.g., a top side) of the acoustic medium 320 to a second or opposite side (e.g., a bottom side) of the acoustic medium 320 .
- the overlay material 350 comprises a tape or an adhesive tape, such as a seam tape or a drywall tape. In other embodiments, the overlay material 350 may comprise one or more of plastic and metal. In some embodiments, the overlay material 350 can also allow minimal flow of the construction material, while restricting enough of the flow to prevent the construction material from flowing completely through the joint area. The overlay material 350 can also be substantially moisture resistant.
- FIG. 4A is a top view of a configuration of a form material 410 .
- FIG. 4B is a top view of a configuration of a form material 410 with an array of acoustic media 420 disposed on the form material 410 .
- the acoustic media 420 may be disposed on a plurality of sections of the form material 410 .
- a portion of the form material 410 may be exposed to the construction material 440 .
- the acoustic media 420 may be disposed on an entire surface of the form material 410 .
- an array of acoustic media 420 may comprise a first acoustic panel and a second acoustic panel wherein the first acoustic panel comprises at least one characteristic that varies from the second acoustic panel.
- the at least one characteristic that varies may comprise one or more of a density of acoustic media, a dimension, a quantity of discrete densities, and a configuration of discrete densities.
- FIG. 4C is a top view of a configuration of a multi-layered construction material 400 comprising a form material 410 , an acoustic medium 420 (shown in phantom), and a construction material 440 .
- FIG. 5 is a flowchart illustrating a method 500 for constructing a multi-layered structure comprising 510 installing a form material, 520 disposing an acoustic medium on a first surface of the form material, and 530 disposing a construction material over at least one surface of the acoustic medium.
- 510 installing a form material comprises building a support structure to support a form elevated above a lower surface, such as a floor of a lower story of a multi-story building.
- the acoustic medium is disposed on the first surface of the form material using one or more coupling mechanisms such as a bolt, a screw, a tack, a nail, a pin, or the like.
- One or more coupling mechanisms may be useful for a multi-layered structure comprising a vertical component wherein the acoustic material is disposed on a vertical surface of the form material.
- FIG. 6 is a flowchart illustrating a method 600 for constructing a multi-layered structure comprising 610 installing a form material, 620 disposing an acoustic medium on a first surface of the form material, 630 coupling at least two panels of the acoustic medium together with an overlay material (e.g., such as a moisture resistant overlay material), 640 disposing a construction material over at least one surface of the acoustic medium, and 650 removing the form material after the construction material has at least partially cured thereby exposing at least one surface of the acoustic medium.
- an overlay material e.g., such as a moisture resistant overlay material
Abstract
Description
- This patent application claims priority to U.S. Provisional Patent Application No. 62/290,356, entitled “SYSTEMS AND METHODS FOR CONSTRUCTING NOISE REDUCING SURFACES,” filed Feb. 2, 2016, the entirety of which is incorporated herein by reference.
- The present disclosure is directed to systems and methods for constructing structures and/or surfaces for absorbing sound energy. More particularly, this disclosure relates to systems and methods for providing sound dampening wherein a sound absorption system is integrally formed with a structural surface.
- The embodiments disclosed herein will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings. These drawings depict only typical embodiments, which will be described with additional specificity and detail through use of the accompanying drawings in which:
-
FIG. 1 is a cross-sectional view of a multi-layered sound absorption structure, according to an embodiment of the disclosure; -
FIG. 2 is a cross-sectional view of another embodiment of a multi-layered sound absorption structure; -
FIG. 3 is a perspective view of a junction of two acoustic panels of the acoustic medium, according to an embodiment of the disclosure; -
FIG. 4A is a top view of a form material, according to an embodiment of the disclosure; -
FIG. 4B is a top view of a form material and an array of acoustic media, according to an embodiment of the disclosure; -
FIG. 4C is a top view of a multi-layered sound absorption structure, according to an embodiment of the disclosure; -
FIG. 5 is a flowchart of a method for constructing a multi-layered sound absorption structure, according to an embodiment of the disclosure; and -
FIG. 6 is another embodiment of a method for constructing a multi-layered sound absorption structure. - Many buildings are filled with various sources of noise, including people, vehicles, music players, computers, televisions, appliances, etc. This sound may cause confusion, strain, anxiety, privacy concerns, and/or miscommunication. In many of these buildings, sound dampening materials are installed after construction of the building structure to absorb sound energy from the noise sources and reduce the amount of sound traveling though, and/or reflecting off of, the surfaces of the building. The installation process of such material after construction may result in increased costs and inconsistency of application throughout the building.
- The present disclosure relates to systems and methods for installing sound absorption systems that are integrally formed with structural elements of the building. This may reduce installation costs, provide uniformity of sound dampening, and/or streamline the scheduling of a construction project. In some embodiments, the systems and methods generally relate to installing an acoustic medium during a construction process comprising pouring a construction material (e.g., a curing construction material or uncured construction material) such as concrete, cement (e.g., gypsum cement) or another cementitious material, a composite material, or a plaster onto an acoustic medium; wherein a portion of the construction material migrates into a region of the acoustic medium, and curing the construction material such that the acoustic medium is integrally bonded to the construction material.
- In certain embodiments, the systems and methods may be used in the construction of various components of a building such as ceilings, floors, walls, and elevator shafts. And in particular embodiments, the systems and methods may be used for surfaces that are a ceiling for one story (e.g., a first story) and a floor for another story (e.g., a second story) of a multi-story building. In yet further embodiments, the systems and methods may also be used in post tension slab construction.
- For simplicity and clarity of illustration, the figures illustrate the general manner of construction, and descriptions and details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the discussion of the described embodiments. Additionally, elements in the figures are not necessarily drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help improve understanding of the disclosed embodiments. The same reference numerals in different figures denote the same elements, while similar reference numerals may, but do not necessarily, denote similar elements.
- The terms “first,” “second,” and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Similarly, if a method is described herein as comprising a series of steps, the order of such steps as presented herein is not necessarily the only order in which such steps may be performed, and certain of the stated steps may possibly be omitted and/or certain other steps not described herein may possibly be added to the method. Furthermore, the terms “comprise,” “include,” “have,” and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
- The terms “top,” “bottom,” “over,” “under,” and the like in the description and in the claims, if any, are used for descriptive purposes and not necessarily for describing permanent relative positions. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in other orientations than those illustrated or otherwise described herein. Objects described herein as being “adjacent” to each other may be in physical contact with each other, in close proximity to each other, or in the same general region or area as each other, as appropriate for the context in which the phrase is used.
- The phrase “coupled to” is broad enough to refer to any suitable coupling or other form of interaction between two or more entities, including mechanical, fluid and thermal interaction. Two components may be coupled to each other even though they are not in direct contact with each other. The phrase “attached to” refers to interaction between two or more entities which are in direct contact with each other and/or are separated from each other only by a fastener of any suitable variety (e.g., an adhesive).
-
FIG. 1 illustrates a cross-sectional view of amulti-layered structure 100 according to an embodiment of the present disclosure. Themulti-layered structure 100 can also be referred to as a multi-layered sound absorption structure, or a sound absorption system, etc. As shown inFIG. 1 , themulti-layered structure 100 comprises anacoustic medium 120 and aconstruction material 140. Themulti-layered structure 100 also comprises aform material 110, although in some instances theform material 110 can be removed after manufacturing, as further detailed below. - The
form material 110 can include various types of materials. For example, in some embodiments, theform material 110 comprises one or more of wood, metal, plastic, fiberglass, and resin. In certain embodiments, theform material 110 is used to at least temporarily hold or otherwise retain theacoustic medium 120 and theconstruction material 140, such as when theconstruction material 140 cures and/or otherwise hardens or solidifies (such as from a fluid state to a solid state). Theform material 110 may also be coupled to an additional support structure to further support a weight of themulti-layered structure 100. As previously stated, in certain embodiments, theform material 110 may be removed after theconstruction material 140 has cured. In other embodiments, aform material 110 is not used, and theconstruction material 140 is poured or otherwise disposed on theacoustic medium 120 without the need of aform material 110. In yet other embodiments, aform material 110 is disposed adjacent to one or more of the bottom surface and side surfaces (or perimeter) of theacoustic medium 120. - The
acoustic medium 120 may comprise various types of sound dampening material. For example, in some embodiments, theacoustic medium 120 comprises a fibrous sound dampening material such as polyester and/or fiberglass. Theacoustic medium 120 may also be porous, such that it may absorb (or at least partially absorb) a liquid or fluid material such as a liquid orfluid construction material 140. Theacoustic medium 120 may also be permeable, or semipermeable. In further embodiments, theacoustic medium 120 is also substantially water or moisture-resistant. - In some embodiments, the
acoustic medium 120 may comprise a nonwoven fabric. For example, theacoustic medium 120 may comprise a spunbonded olefin or polyester. Certain nonwovenacoustic mediums 120 may permit water vapor to pass through, such as during a curing phase of theconstruction material 140, while limiting the flow of fluid orliquid construction material 140 to one or more regions of theacoustic medium 120. Additionally, because of its fibrous structure, nonwovenacoustic mediums 120 may facilitate bonding to theconstruction material 140, as further detailed below. - The
acoustic medium 120 may also comprise a treated acoustic media or material. For example, theacoustic medium 120 can comprise acoustic material of which at least a portion is melted using one or more of heat, acid, or other chemical compounds. In some of such embodiments, theacoustic medium 120 may be at least partially melted using heat from one or more of a flame, a hot iron, and exposure to heated gases. - In various embodiments, the
acoustic medium 120 can comprise one or more of a high melt and a low melt acoustic material. High melt acoustic materials can refer to materials having a melting point above about 450° F. Low melt acoustic materials can refer to materials having a melting point above about 320° F. In some of these embodiments, theacoustic medium 120 may comprise between about 50% and 95%, or between about 70% and 90% by weight of a high melt material; and between about 5% and 50%, or between about 10% and 30% by weight of a low melt material. - At least a region of the
acoustic medium 120 can be coupled (e.g., integrally coupled) to theconstruction material 140. For example, during manufacturing, a fluid and/oruncured construction material 140 can be poured, dispensed, and/or otherwise disposed onto a surface of theacoustic medium 120. At least a portion of the fluid oruncured construction material 140 can then migrate and/or flow through the surface and into a region of theacoustic medium 120 before curing or otherwise solidifying. In particular embodiments, the fluid and/oruncured construction material 140 flows into voids (or the porous network) between individual fibers (or clusters of fibers) of theacoustic medium 120. In some instances, this flow ofconstruction material 140 into the region of theacoustic medium 120 can be described as interdigitation. - The
construction material 140 can flow into theacoustic medium 120 to varying depths. For example, in certain embodiments, theconstruction material 140 flows or migrates into theacoustic medium 120 to a depth or distance of between about 1/32 and about ⅛, or between about 1/24 and about 1/12 inches. - As the
construction material 140 cures and/or otherwise hardens or solidifies, theconstruction material 140 dispersed throughout a region of the acoustic medium 120 (e.g., the interdigitated construction material 140) can cure around the fibers (or clusters of fibers) of theacoustic medium 120 thereby binding or coupling theconstruction material 140 to theacoustic medium 120. In the resultingmulti-layer structure 100, theacoustic medium 120 can be described as being integrally bound or coupled to theconstruction material 140. At least a portion of the fibers of theacoustic medium 120 can also be described as being disposed within a portion of theconstruction material 140. Further, in some embodiments, the integral coupling can create a bond between theacoustic medium 120 and theconstruction material 140 that does not require an additional mechanical coupling device. In other embodiments, a mechanical coupling device may be added after the curing process to reinforce the integral coupling of theconstruction material 140 and theacoustic medium 120. - With continued reference to
FIG. 1 , at least one surface of theacoustic medium 120 may be integrally coupled to theconstruction material 140. For example, if theacoustic medium 120 is a rectangular prism-shaped panel, a surface of theacoustic medium 120 that is opposite theform material 110 may be coupled to theconstruction material 140. In some of these embodiments, one or more of side surfaces of theacoustic medium 120 may also be coupled to theconstruction material 140. In some such embodiments, the one or more surfaces may also comprise a barrier material to prevent excessive absorption of theconstruction material 140 by theacoustic medium 120, as further detailed below. In further embodiments, at least a portion of one or more surfaces of theacoustic medium 120 is not in direct contact with the curingconstruction material 140. This may facilitate a direct interface of the one or more surfaces of theacoustic medium 120 to theform material 110, such that when theform material 110 is removed at least a portion of one surface of theacoustic medium 120 is exposed. - As can be appreciated, the
acoustic medium 120 may comprise acoustic panels that may be any size including, but not limited to, about two feet by two feet, two feet by four feet, four feet by four feet, four feet by six feet, six feet by six feet, four feet by eight feet, or four feet by 10 feet. Theacoustic medium 120 or panel may also be any thickness including, but not limited to, about half of an inch, about one to two inches, about two to four inches, or about four to six inches. - The
acoustic medium 120 may also comprise material at various densities. In some embodiments, theacoustic medium 120 may comprise a plurality of regions of material having distinct densities. The plurality of regions of material having distinct densities may have different sound absorption capabilities and may target various frequency ranges of sounds. In some embodiments, theacoustic medium 120 may comprise acoustic material of one or more of the following ranges of density: two to three pounds per cubic foot, two to four pounds per cubic foot, four to six pounds per cubic foot, six to eight pounds per cubic foot, and eight to 15 pounds per cubic foot. In certain embodiments, theacoustic medium 120 may comprise two or more regions of discrete densities. In some of these embodiments, a region having a higher density is at least partially disposed adjacent theform material 110. In other embodiments, a region having a higher density is at least partially disposed adjacent theconstruction material 140. - In some embodiments, the
acoustic medium 120 comprises at least three regions of discrete densities. In some of these embodiments, a region having a lowest density is at least partially disposed between the two remaining regions. For example, in some of these embodiments, a region having the highest density is disposed adjacent theform material 110 and a region having the next highest density is disposed adjacent theconstruction material 140. In other similar embodiments, a region having the highest density is disposed adjacent theconstruction material 140 and the region having the next highest density is disposed adjacent theform material 110. - In some embodiments, the
acoustic medium 120 may reduce acoustic energy by at least 20%, at least 30%, at least 40%, at least 50%, at least 75%, or at least 90%. In other embodiments, theacoustic medium 120 may reduce acoustic energy in an amount ranging from 50% to 90%. The standard for measuring such a reduction of acoustic energy may be a Noise Reduction Coefficient (NRC) as tested under ASTM C423. -
FIG. 2 depicts amulti-layer structure 200 according to another embodiment of the present disclosure. As shown inFIG. 2 , in some embodiments, the acoustic medium 220 can include a barrier 230, or a separate barrier layer 230 can be disposed between the acoustic medium 220 and theconstruction material 240. In such embodiments, the barrier 230 can aid in limiting and/or minimizing the amount ofconstruction material 240 that flows, migrates, or saturates the acoustic medium 220. As further detailed below, the barrier 230 may, in some instances, comprise a portion of the acoustic medium 220 (such as a treated portion of the acoustic medium 220). In additional embodiments, an acoustic material may comprise the form material 210 and the acoustic medium 220. - In some embodiments, the barrier 230 may be formed by treating a portion of the acoustic medium 220. For example, treating a portion of the acoustic medium 220 may comprise heating a portion of the acoustic medium 220, or coating a portion of the acoustic medium 220 with one or more of a moisture-resistant material and a moisture-proof material to thereby form a barrier layer 230. Coating a portion of the acoustic medium 220 may also comprise applying a thin layer of moisture-resistant material such that at least some fibers of the acoustic medium 220 penetrate the moisture-resistant material and are exposed to the
construction material 240. - The barrier 230 may also be formed of a semi-permeable, moisture-resistant material such that a portion of the acoustic medium 220 may absorb a portion of the
construction material 240 that flows through the barrier 230. Partial absorption may facilitate coupling of the acoustic medium 220 to the curingconstruction material 240. In other embodiments, the barrier 230 may comprise fibrous material that absorbs a portion of theconstruction material 240 to couple the barrier 230 to theconstruction material 240 during a curing process while limiting contact between the acoustic medium 220 and theconstruction material 240. In some of these embodiments, the barrier 230 is coupled to the acoustic medium 220 during a manufacturing process of the acoustic medium 220. In other embodiments, the barrier 230 may be coupled to the acoustic medium 220 after a manufacturing process of the acoustic medium 220. In some such embodiments, the barrier 230 may be coupled to the acoustic medium 220 using a bonding method comprising one or more of heat and pressure. In other embodiments, the barrier 230 may be coupled to the acoustic medium 220 using adhesive material. -
FIG. 3 is a perspective view of two panels of theacoustic medium 320 being coupled together using anoverlay material 350. As shown in the illustration, theoverlay material 350 may be coupled or attached to asurface 322 of each of the two panels of the acoustic medium 320 (or a surface of the barrier if a barrier layer is used). As further shown inFIG. 3 , theoverlay material 350 can cover the joint (or gap) between the two panels, forming a barrier over the joint. In such embodiments, theoverlay material 350 can restrict or prevent the construction material from flowing through (e.g., completely through) the joint area (or gap) between the panels. In other words, theoverlay material 350 can prevent the construction material from flowing from one side (e.g., a top side) of theacoustic medium 320 to a second or opposite side (e.g., a bottom side) of theacoustic medium 320. - In some embodiments, the
overlay material 350 comprises a tape or an adhesive tape, such as a seam tape or a drywall tape. In other embodiments, theoverlay material 350 may comprise one or more of plastic and metal. In some embodiments, theoverlay material 350 can also allow minimal flow of the construction material, while restricting enough of the flow to prevent the construction material from flowing completely through the joint area. Theoverlay material 350 can also be substantially moisture resistant. -
FIG. 4A is a top view of a configuration of aform material 410.FIG. 4B is a top view of a configuration of aform material 410 with an array ofacoustic media 420 disposed on theform material 410. As shown, theacoustic media 420 may be disposed on a plurality of sections of theform material 410. In some embodiments, as inFIG. 4B , a portion of theform material 410 may be exposed to theconstruction material 440. In other embodiments, theacoustic media 420 may be disposed on an entire surface of theform material 410. In some embodiments, an array ofacoustic media 420 may comprise a first acoustic panel and a second acoustic panel wherein the first acoustic panel comprises at least one characteristic that varies from the second acoustic panel. The at least one characteristic that varies may comprise one or more of a density of acoustic media, a dimension, a quantity of discrete densities, and a configuration of discrete densities.FIG. 4C is a top view of a configuration of a multi-layered construction material 400 comprising aform material 410, an acoustic medium 420 (shown in phantom), and aconstruction material 440. -
FIG. 5 is a flowchart illustrating amethod 500 for constructing a multi-layered structure comprising 510 installing a form material, 520 disposing an acoustic medium on a first surface of the form material, and 530 disposing a construction material over at least one surface of the acoustic medium. In some embodiments ofmethod -
FIG. 6 is a flowchart illustrating amethod 600 for constructing a multi-layered structure comprising 610 installing a form material, 620 disposing an acoustic medium on a first surface of the form material, 630 coupling at least two panels of the acoustic medium together with an overlay material (e.g., such as a moisture resistant overlay material), 640 disposing a construction material over at least one surface of the acoustic medium, and 650 removing the form material after the construction material has at least partially cured thereby exposing at least one surface of the acoustic medium. - Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings, and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art. The scope of the present invention should, therefore, be determined only by the following claims.
Claims (20)
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